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1993 945: Help With New 945-Stalls, Missing Air Hose, & Leak

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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weismanfamily
Posts: 2
Joined: 3 October 2013
Year and Model: 1993 940 Wagon
Location: United States

1993 945: Help With New 945-Stalls, Missing Air Hose, & Leak

Post by weismanfamily »

Hello All! First post on the forum.

Last week I purchased a 1993 945 Wagon in excellent condition with about 350,000 km. Car was properly serviced and maintained with OEM parts. The engine (B200F) and transmission were both replaced with new units in 2006, and have about 100,000 km on them since then. Within last two years, radiator was replaced, and within last year, head gasket and water pump.

Car has a few minor issues I could use some help with. First, it has an intermittent stalling issue when stopped at red lights or when idling in drive. Engine just cuts out, but has no problem restarting. I am getting a code 2-1-4, crank position sensor, so perhaps that is the issue, though it may also be related to two other issues I have since discovered:

1) It seems to be missing a hose or two from the air intake system. There is also a small broken rubber tube and plastic part just in front of the driver side firewall, which seems like was some sort of inline air-freshener or filter. Here is a link to three photos, can anyone identify what is missing and/or broken, and if it they are important to replace/repair?

http://goo.gl/8u4uDA

2) From what I have learned on this forum, my car has the incorrect expansion tank cover. It has the green 1.5 Kpa cover, and I can hear a slight hissing/gurgling sound after driving from the tank before it de-pressurizes, and there is a very small coolant leak where the small high pressure connection screws into the top rear of the radiator. The leak appears to be seeping from around the larger threads which are flush against the radiator. As mentioned above, the radiator was new about two years ago and appears to still be in excellent shape. I don't know when the green cap was installed, but from what I've been reading, this may be the cause of my current coolant leak issue.

Thanks in advance for any advice and input!

Cheers,

Michael

Richard-Bundy
Posts: 15
Joined: 2 February 2012
Year and Model: 940 1992
Location: Australia

Post by Richard-Bundy »

hi,
saw no replies, so I thought I might comment for you.
the airbox seems to have been modified by screwing the flap in the cold air position, pic 1. that's a good thing in my opinion, but I don't know where you live. so the flex hose that's missing on the bottom small outlet is ok ( it goes to the exhaust, pic 2). however if you can get a hose on the top that ingests air from in front of the radiator, it would be an improvement. the hoses broken near the firewall appear to be the window washer system, pic 3. no biggie.
from my experience, the stalling is probably the in tank fuel pump ( especially if the issue is when you are low on fuel in the tank ), or the idle air valve needs a clean. these are fairly cheap maintenance things that you should check anyway. correct cooling cap is also obvious fix. personally, I would relace as much of the cooling system as you can afford to do.
my 2 best tips, clean the MAF, and ensure correct thermostat for good fuel consumption.
enjoy !

weismanfamily
Posts: 2
Joined: 3 October 2013
Year and Model: 1993 940 Wagon
Location: United States

Post by weismanfamily »

Thanks for the reply. Here is a photo of my coolant/water leak:

http://goo.gl/9SlVob

When I bought the car last week, I noticed it was low on coolant, and that also it appears that the system contained only water and not the proper 50/50 mix, meaning the last owner must have been topping of with straight water for a while.

The car had a new water pump about a year ago, and a new radiator about 4 years ago.

Richard-Bundy
Posts: 15
Joined: 2 February 2012
Year and Model: 940 1992
Location: Australia

Post by Richard-Bundy »

that's the thing with second hand cars, you don't know what the previous owners were up to. the 940 I got my daughter recently ' had new front brakes', of course when I checked them they needed both pads and discs !
a radiator problem can quickly turn into a transmission problem, especially if plain water is in the system. radiator, pump. thermostat and housing about $200 all up. plus some proper fluid. I have replaced water pumps and found them to have no impeller left on them, so the are just spinning rather than pumping. the leak in your photo is no big issue on its own, but it does give a clue as to the condition if the radiator, along with the other clues you have spotted.

lets hope you can get these up to spec soon.

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